diff --git a/static/js/dropdown_list_widget.js b/static/js/dropdown_list_widget.js
index 758ce79224..ca83ac4d9a 100644
--- a/static/js/dropdown_list_widget.js
+++ b/static/js/dropdown_list_widget.js
@@ -142,4 +142,5 @@ const DropdownListWidget = function (opts) {
     };
 };
 
+module.exports = DropdownListWidget;
 window.dropdown_list_widget = DropdownListWidget;